added output at the end to show which packingType was used

Source/Python/Classes/EcFlexpart.py

@@ -1879,6 +1879,8 @@ class EcFlexpart(object):
 
         print('\n\nPostprocessing:\n Format: {}\n'.format(c.format))
 
+        print('\n\nGrib compression type:\n packingType: {}\n'.format(c.compression))
+
         if _config.FLAG_ON_ECMWFSERVER:
             print('ecstorage: {}\n ecfsdir: {}\n'.
                   format(c.ecstorage, c.ecfsdir))